I'd like to get cylinder vases to put the bridesmaids' bouquets in prior to the ceremony. They'll triple their use by a few of them being used with the bridesmaids' bouquets in them around the cake and again to give away to special people with flowers from the wedding. I want to make sure I get a tall enough vase so that the weight of the bouquet doesn't tip the vase over, but am not sure what height that would be. Any suggestions?